One great feature that Facebook has developed is its Facebook Groups. We use it everyday to keep in touch with our family and friends. This may also serve as an instrument to collaborate on school or other types of project, or even plan trips and make important announcements. It's really very useful! Communicating to groups has never been this easy. Thanks to Facebook.

Just today, Facebook introduces its second standalone app, the Facebook Groups app, several months after it launched the Messenger App (Facebook's first separate app).

This is how the Facebook Groups App works:

When you open the Facebook Groups App, the first screen will show the list of your groups. The most frequently used are positioned at the top.